Hi Omar.

Can i use a modifier (like the subsurf) on a specific group of vertex only , rather than the entire object ? (Sorry about my bad english ^^')

I am Omar, and I'm a quad-holic

but like every rule, once you understand them, you can break them when you wish. :)

when you use triangles or ngons

The subdivision modifier then has to arbitrary choose in wich direction to cut the face when it's not a quad and so it gets worst and worst

indeed pieriko good to learn holding edges first.

Thanks pieriko

Use a matcap to show it

The problem with creasing edges is that it can input a lot of distortions on textures for exemple and... it's kind of cheating with your geometry so wether it visualy works, I think it's better to learn using supporting edges and nice topology first.

edge crease can saves you a lot of time for sure, but to be used with caution.

If I were modeling this for a scene, I would model this to scale using real world units.

Just as a heads up, for the viewers it's a little hard to tell the difference when streaming in a lower quality, but if you enable smooth shading yourself in Blender you will definitely notice the difference :)

Thore - other than quads it starts getting funky (if being animated)

how long is the stream going to go for today? have to run to a meeting

i usually bevel and adjust the setting depending

That little indention goes back to when they used to blow glass. The point where they would break the glass would scratch the table without that indention. (Feel the bottom of a plastic cup to see what I'm talking about.)

Does the subdivision work on models that has geometry other than quads?

yep scott, though then its better to use bevel modifier with it.

Could you not also "edge crease" the bottom to keep the poly count down?

ah yannis- thats a point- thanks